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Table 4 Multivariable logistic regression analysis for in-hospital death

From: Comparison of clinical characteristics and outcomes between aspiration pneumonia and community-acquired pneumonia in patients with chronic obstructive pulmonary disease

   All AsP CAP
   aOR 95 % CI aOR 95 % CI aOR 95 % CI
Type of pneumonia       
  AsP 1.19** 1.08–1.31     
  CAP Ref.      
Age (years)       
  40–64 Ref.   Ref.   Ref.  
  65–74 1.13 0.93–1.38 1.43 0.75–2.71 1.09 0.87–1.35
  75–84 1.28* 1.05–1.56 1.52 0.80–2.91 1.22 0.98–1.52
  >85 1.45** 1.18–1.77 1.58 0.83–2.97 1.41** 1.12–1.77
Sex       
  Male Ref.   Ref.   Ref.  
  Female 0.60** 0.54–0.67 0.66** 0.52–0.83 0.58** 0.52–0.66
Body mass index (kg/m2)
  <18.5 1.70** 1.58–1.83 1.72** 1.50–1.96 1.69** 1.55–1.84
  18.5–24.9 Ref.   Ref.   Ref.  
  25–29.9 0.77** 0.65–0.93 0.73 0.48–1.12 0.77* 0.63–0.95
  >30 0.88 0.56–1.38 0.79 0.24–2.55 0.90 0.52–1.47
Dyspnea grade by Hugh-Jones classification
  I Ref.   Ref.   Ref.  
  II 1.23 0.89–1.68 0.64 0.33–1.22 1.42 1.00–2.02
  III 1.51** 1.13–2.01 0.90 0.51–1.58 1.68** 1.21–2.34
  IV 2.26** 1.74–2.96 1.30 0.76–2.22 2.57** 1.89–3.50
  V 5.44** 4.19–7.08 2.60** 1.55–4.37 6.42** 4.72–8.72
  Unspecified 5.54** 4.20–7.29 2.47** 1.46–4.19 6.90** 4.99–9.53
Level of consciousness      
  Alert Ref.   Ref.   Ref.  
  Dull 0.96 0.86–1.07 0.88 0.75–1.03 1.00 0.88–1.14
  Somnolence 1.09 0.94–1.27 0.82 0.64–1.04 1.38** 1.12–1.70
  Coma 1.46** 1.19–1.80 1.22 0.88–1.68 1.62** 1.24–2.10
Level of ADL scored by Barthel index
  20 Ref.   Ref.   Ref.  
  15–19 1.26** 1.09–1.45 1.07 0.73–1.59 1.26** 1.07–1.48
  10–14 1.54** 1.34–1.76 1.33 0.93–1.90 1.51** 1.31–1.75
  5–9 1.90** 1.65–2.20 1.22 0.85–1.75 1.99** 1.69–2.35
  0–4 3.04** 2.67–3.46 1.94** 1.43–2.63 3.21** 2.76–3.71
A-DROP score       
  Mild Ref.   Ref.   Ref.  
  Moderate 1.64** 1.24–2.17 3.22* 1.15–9.00 1.48* 1.09–2.01
  Severe 2.86** 2.12–3.85 5.11** 1.78–14.65 2.67** 1.94–3.68
  Extremely severe 7.84** 5.74–10.70 14.18** 4.85–41.41 7.22** 5.15–10.12
Co-morbidities on admission
  IP 2.21** 1.88–2.60 1.69* 1.12–2.55 2.32** 1.95–2.76
  Lung cancer 2.80** 2.45–3.20 1.88** 1.40–2.52 3.00** 2.59–3.48
  Heart failure 1.16** 1.06–1.27 1.27** 1.06–1.53 1.14* 1.00–1.24
  IHD 0.80** 0.69–0.93 0.93 0.69–1.25 0.76** 0.63–0.90
  Arrhythmia 1.15 0.99–1.33 1.34* 1.01–1.78 1.07 8.9–.128
  PE 0.91 0.44–1.90 1.20 0.11–12.56 0.84 0.40–1.75
  Cor pulmonale 1.42* 1.02–1.99 1.77 0.80–3.89 1.35 0.93–1.l97
  CVD 0.94 0.84–1.06 0.99 0.84–1.16 0.92 0.79–1.07
  CLD 1.23 0.93–1.64 1.51 0.81–2.81 1.13 0.81–1.57
  CRF 1.65** 1.35–2.02 1.56* 1.08–2.27 1.68** 1.35–2.09
  ANX/DEP 0.90 0.64–1.28 1.53 0.92–2.53 0.67 0.43–1.05
  Bone fracture 1.66** 1.29–2.13 1.20 0.80–1.82 1.90** 1.41–2.56
  1. *p value <0.05, **p value <0.01. Abbreviations: AsP aspiration pneumonia, CAP community-acquired pneumonia, aOR adjusted odds ratio, CI confidence interval, Ref. reference, ADL activities of daily life, IP interstitial pneumonitis IHD ischemic heart disease, PE pulmonary embolism, CVD cerebrovascular disease, CLD chronic liver disease, CRF chronic renal failure, ANX/DEP anxiety and depression